TABLE E-28,--Long-term trend in waterfowl breeding population indexes by species 
southern Manitoba (Stratum A and B), 1955-1963 












































































Ducks : 
Dabblers: 
Mallard-~-------------- 491,000 ] 500,000] 490,500 | 303,600 | 322,100 129,200 | 182,038 
Black duck------------- 1,000 -- -- -- -- 1,390 
Gadwall---------------- 5,000 7,700 | 4,900 | 4,200 9,200 | 14,291 
Baldpate--------------- 26,700 53,000 } 29,600 | 12,700 10,800 | 15,153 
Green-winged teal------ 1,700 7,200 4,500 2,200 400 4,671 
Blue-winged teal------- 53,200 124,900 | 140,800 | 94,900 43,900 | 46,989 
Shoveler--------------- 27,800 28,200 | 36,000 | 53,600 17,400 | 33,334 
Pintail---------------- 150,000 73,100 | 40,800 | 97,500 41,300 | 61,680 
Wood duck-------------- -- 200 -- -- xe 
Subtotal---~---------- 756,400 | 733,900; 784,800 | 560,200 [587,200 
Divers: 
Redhead ---------------- 26,600 | 23,300 | 25,800 
Canvasback~------------ 56,600 | 17,900 | 37,400 
Scaup-------~---------- 70,500 | 48,000 | 145,900 
Ring-necked duck 5,600 9,900 4,600 
Goldeneye --~------~----- 2,300 9,300 4,600 
Bufflehead--~---------- 3,400 3,900 4,100 
Ruddy duck------+------ 6,200 8,700 | 15,800 
Subtotal------------- 159,000 |125,100|] 171,200 187,000 
Miscellaneous: 
Merganser ------+------- 100 
Scoters -+--------------+ 1,500 
Other------------------ 




a a EN 
769, 300 | 916,800 | 860,300/ 956,700 | 681,200 | 825,400 | 600,500 {379,800 | 507,769 
20,800 96 , 000 54,426 



80,900 | 166,000 
Grand Total-------------- 797 ,800 | 956,800 847,200 562,195 
i Figures for 1958 and 1959 do not include flocked ducks. 
9 not 
126 
